You should give like 10 points for going around the more difficult side of the obstacle because that's like a totally risky maneuver! Very hard, especially, when the obstacle is dead center because it's very hard to determine the more dangerous side!! It would add enormously to the awesome pointlessness of this supremely challenging game (I just can't seem to make it very far without committing frisbee seppuku).

What if you added phases for every 100 or so points? Maybe each new phase would go faster, making it harder to avoid obstacles (and perhaps a boss fight at 1000)? For one phase, the sloth could get a hoverboard, and another phase the sloth would be in a car, and the last phase with a spaceship.